Pith Number

pith:EFFHJ2RJ

pith:2018:EFFHJ2RJCBFXJAD7DKOHCCUVAU

not attested not anchored not stored refs pending

The Interhospital Transfer Network for Very Low Birth Weight Infants in the United States

Erika M. Edwards, Jeffrey D. Horbar, Lucy T. Greenberg, Munik Shrestha, Samuel V. Scarpino

arxiv:1802.02855 v3 · 2018-01-26 · physics.soc-ph · cs.SI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFFHJ2RJCBFXJAD7DKOHCCUVAU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:11:57.436362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

214a74ea29104b74807f1a9c710a950525e05d3004ce3554e695ee86bf8752c0

Aliases

arxiv: 1802.02855 · arxiv_version: 1802.02855v3 · doi: 10.48550/arxiv.1802.02855 · pith_short_12: EFFHJ2RJCBFX · pith_short_16: EFFHJ2RJCBFXJAD7 · pith_short_8: EFFHJ2RJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EFFHJ2RJCBFXJAD7DKOHCCUVAU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 214a74ea29104b74807f1a9c710a950525e05d3004ce3554e695ee86bf8752c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9165a1c997e58d8a64cf2a1cc2c697bbacc979b280fb01f90eebb1f8f7146bb",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2018-01-26T15:27:14Z",
    "title_canon_sha256": "e55a52907656cbd90aac9b90cdd18dd248b2577702dc4cdd2f8fee59391a5ab0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02855",
    "kind": "arxiv",
    "version": 3
  }
}